CN112096851B - Gear position setting method based on wear compensation - Google Patents
Gear position setting method based on wear compensation Download PDFInfo
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- CN112096851B CN112096851B CN202011072219.4A CN202011072219A CN112096851B CN 112096851 B CN112096851 B CN 112096851B CN 202011072219 A CN202011072219 A CN 202011072219A CN 112096851 B CN112096851 B CN 112096851B
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000007935 neutral effect Effects 0.000 claims abstract description 44
- 230000008859 change Effects 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 38
- 238000001514 detection method Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims 3
- 238000005299 abrasion Methods 0.000 abstract description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/08—Range selector apparatus
- F16H59/10—Range selector apparatus comprising levers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
Abstract
The invention discloses a gear position setting method based on wear compensation, which is applied to a speed change system, wherein the speed change system comprises a gearbox and a gearbox controller, the gearbox comprises a gear shifting system, and the gear position setting method based on wear compensation comprises the following steps: the method comprises the steps of firstly setting gear position information and abrasion loss information in a gearbox controller, and then correcting a target position of a neutral position in controller software according to the abrasion information of a gearbox gear shifting system, so that the reliability of the neutral position of the gearbox is guaranteed, and the success rate of the neutral position is improved.
Description
Technical Field
The invention belongs to the technical field of speed change systems, and particularly relates to a gear position setting method based on wear compensation.
Background
FIG. 1 is a typical transmission fork shift configuration. The gear shifting block 1 swings around a rotation center under the driving of an external actuating mechanism. Shifting fork shaft 2 and shifting fork 3 have assembled into a whole, and the swing of shifting block 1 can drive shifting fork 3 and shifting fork shaft 2 and carry out linear motion. The gear shifting fork 3 drives the meshing gear sleeve 4 to do linear motion. In fig. 1, the left side and the right side of the meshing gear sleeve are respectively provided with a meshing gear, for example, the left meshing gear 5 is meshed with the meshing gear 5 when the meshing gear sleeve 4 moves leftwards, the torque of the gearbox can be transmitted to the meshing gear 5 through the transmission gear 6, and the transmission gear 6 and the meshing gear 5 are welded together. After the meshing sleeve 4 meshes with the meshing teeth 5, the torque of the meshing teeth 5 is transmitted to the meshing sleeve 4. The meshing sleeve 4 is usually splined on the drive shaft 7. Therefore, the meshing gear sleeve always rotates synchronously with the transmission shaft 7, and the torque of the meshing gear sleeve 4 is directly transmitted to the transmission shaft 7.
The meshing sleeve 4 in fig. 1 controls the meshing of 3 gears. Moving to the left to a set position to engage a low gear, wherein the set position is defined as D _ L; moving to the right to a set position to hang a high gear, wherein the set position is defined as D _ R; move to a neutral position defined as D _ N and remain in neutral. Due to manufacturing reasons, the individual gearboxes have differences, the D _ L, D _ R, D _ N of each gearbox is not completely the same, and before the automatic gearbox is offline, the gearbox controller TCU and mechanical parts of the gearbox are required to be subjected to calibration matching to set gear positions, namely the factory value of the D _ L, D _ R, D _ N is determined.
The setting method in the prior art is shown in fig. 2. In fig. 2, D _ L0 is the mechanical limit position to the left, D _ L is the shift position setting position to the left, D _ N is the neutral position setting position, D _ R0 is the mechanical limit position to the right, and D _ R is the shift position setting position to the right. When designing a mechanical dimension chain of a gearbox, the distance between the D _ N position of the gearbox and D _ L0 and the distance between D _ N and D _ R0 are generally in a fixed proportion, for example, 50:50 in most cases. Therefore, after obtaining D _ L0 and D _ R0, the value of D _ N can be calculated according to the proportional relationship of the two side gear strokes. For example, the stroke of the left and right gears of the gearbox is 50:50 symmetrical, and the neutral position D _ N is (D _ L0+ D _ R0)/2.
Since the sleeve gear 4 is rotating at high speed, it is not easy to arrange a sensor, and therefore a sensor is usually arranged on the driver of the shift knob to indirectly detect the stroke of the sleeve gear 4. Along with the use of shifting repeatedly of gearbox, relative friction position between shifting block 1 and the shift fork 3 of shifting, the friction position between shift fork 3 and the meshing gear sleeve 4 etc. all can produce wearing and tearing, especially have relative friction motion between shift fork 3 of shifting and the meshing gear sleeve 4 always, and wearing and tearing can be especially serious. Wear can result in larger gaps. The amount of gap is assumed to be Δ D.
The defects of the prior art are as follows: due to the existence of the gap, particularly after the gap is increased, according to the D _ N set by the existing method, for example, after the actuator control gear shifting system is hung on the D _ L0, the D _ N is returned to, due to the gap Δ D between the components, the software recognizes that the actuator moves from the D _ L0 to the D _ N, but because of the existence of the Δ D, the gear engaging teeth actually move less by the Δ D, and if the Δ D is large to a certain extent, a phenomenon that the transmission controller software considers that the transmission is neutral, but the engaging teeth of the actual gear are still engaged occurs, which is very dangerous. In addition, the abrasion on the left side and the right side of the gear shifting system is not necessarily symmetrical, and the neutral position of the gearbox is changed after the abrasion is asymmetrical, so that the success rate of neutral gear shifting is reduced.
Disclosure of Invention
Technical problem to be solved
Based on the technical scheme, the invention provides a gear position setting method based on wear compensation, and the gear position setting method based on wear compensation aims to solve the technical problems that the target position of a neutral position in gearbox controller software in the prior art is not accurate, and the reliability of the neutral position of a gearbox is poor.
(II) technical scheme
In order to solve the technical problem, the invention provides a gear position setting method based on wear compensation, which is applied to a speed change system, wherein the speed change system comprises a gearbox and a gearbox controller, the gearbox comprises a gear shift system, the gearbox comprises an execution structure, a gear shift shifting block, a gear shift shifting fork and an engagement gear sleeve, wherein,
the gear position setting method based on wear compensation comprises the following steps:
firstly, setting gear position information and abrasion loss information in the gearbox controller, wherein the gear position information comprises:
d _ L0: the mechanical limit position towards the left is set,
d _ L: the gear position towards the left is set to be a position,
d _ N: regardless of the neutral set position of the wear compensation,
d _ R0: the mechanical limit position towards the right is set,
d _ R: the gear position is set to the right,
d _ NR: the neutral target position after the right side gear shifting system wearing capacity is considered,
d _ NL: the neutral target position after the left side gear shifting system wearing capacity is considered,
wherein: d _ N ═ D _ L0+ D _ R0)/2,
the wear amount information includes:
Δ D _ L0: the amount of wear on the left side of the shifting system,
Δ D _ R0: the amount of wear on the right side of the shifting system,
then, compensation information is set as follows:
when the gearbox is in a D _ L gear, if the gearbox needs to be in a neutral gear, setting a target position of the neutral gear as D _ NL, and shifting the D _ L0 to the right side on the basis of the D _ N to obtain D _ NL;
when the gearbox is in a D _ R gear, if the gearbox needs to be in a neutral gear, the target position of the neutral gear is set to be D _ NR, and D _ NR is obtained by shifting the D _ N gear to the left side by delta D _ R0.
Preferably, Δ D _ L0 is obtained as follows:
d _ L: automatically calibrating the obtained leftward mechanical limit position when the gearbox leaves a factory for detection;
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move leftwards, the actuating mechanism enables the meshing gear sleeve to move leftwards to a mechanical limiting position where the gear shifting system moves leftwards, and the position is D _ L0;
△D_L0＝|D_L0|-|D_L*|。
Preferably, Δ D _ R0 is obtained as follows:
d _ R: automatically calibrating the obtained rightwards mechanical limit position when the gearbox leaves factory for detection;
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move rightwards, and the actuating mechanism enables the meshing gear sleeve to move rightwards to a mechanical limiting position of the gear shifting system, wherein the mechanical limiting position is D _ R0;
△D_R0＝|D_R0|-|D_R*|。
Preferably, Δ D _ L0 and Δ D _ R0 are obtained as follows:
d _ L: automatically calibrating the obtained leftward mechanical limit position when the gearbox leaves a factory for detection; d _ R: automatically calibrating the obtained rightwards mechanical limit position when the gearbox leaves factory for detection;
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move leftwards, the actuating mechanism enables the meshing gear sleeve to move leftwards to a mechanical limiting position where the gear shifting system moves leftwards, and the position is D _ L0;
△D_L0＝|D_L0|-|D_L*|；
Step 4, identifying D _ R0
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move rightwards, and the actuating mechanism enables the meshing gear sleeve to move rightwards to a mechanical limiting position of the gear shifting system, wherein the mechanical limiting position is D _ R0;
△D_R0＝|D_R0|-|D_R*|。
Preferably, Δ D _ R0 and Δ D _ L0 are obtained as follows:
d _ R: automatically calibrating the obtained rightwards mechanical limit position when the gearbox leaves factory for detection; d _ L: automatically calibrating the obtained leftward mechanical limit position when the gearbox leaves a factory for detection;
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move rightwards, and the actuating mechanism enables the meshing gear sleeve to move rightwards to a mechanical limiting position of the gear shifting system, wherein the mechanical limiting position is D _ R0;
△D_R0＝|D_R0|-|D_R*|；
Step 4, identify D _ L0
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move leftwards, the actuating mechanism enables the meshing gear sleeve to move leftwards to a mechanical limiting position where the gear shifting system moves leftwards, and the position is D _ L0;
△D_L0＝|D_L0|-|D_L*|。
Preferably, through starting gear setting, realize setting for gear position information in the gearbox controller, the mode that starts gear setting starts for debugging personnel, specifically is: and designing a debugging mode interface in the software scheduling of the gearbox controller in advance, and starting a gear position setting program by the gearbox controller after debugging equipment is connected with the debugging mode interface and sends a starting gear position setting instruction through the CAN during debugging.
Preferably, setting gear position information in the gearbox controller is realized by starting gear setting, and the mode of starting gear setting is activated and started for abnormal gear shifting, specifically: when the gear shifting is unsuccessful or abnormal in the process of automatic gear shifting of the gearbox controller, the gearbox controller actively starts a gear setting program.
Preferably, the gear position information is set in the gearbox controller by starting gear setting, and the mode of starting gear setting is periodically and actively started, and specifically comprises the following steps: the method comprises the steps that a regular starting program is set in a gearbox controller in advance, starting conditions are defined, and after the starting conditions are met, the gearbox controller actively activates gear setting on the premise of safety to identify whether the gear shifting stroke of the gearbox changes or not.
Preferably, the starting conditions are: the gear-shifting times of the gear-shifting system exceed a set value, or the driving mileage of the vehicle exceeds a set value when the speed-changing system is applied to the vehicle.
Preferably, the transmission system is an automobile transmission system.
(III) advantageous effects
Compared with the prior art, the gear position setting method based on wear compensation has the beneficial effects that:
the gear position setting method based on wear compensation defines a calculation method of wear loss of two sides of a gear shifting system, can correct the neutral position D _ N according to the wear loss, and can correct the target position of a neutral position in a gearbox controller software according to the wear loss of the gearbox gear shifting system, so that the reliability of the gearbox in neutral gear is ensured, and the success rate of the neutral gear is improved. After the gear position setting method based on wear compensation is applied, when a certain side or two sides of a gear shifting system of the gearbox have wear gaps, software in a gearbox controller can eliminate the influence of the gaps according to the wear amount, and the meshing teeth can be guaranteed to reliably return to the neutral position.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
FIG. 1 is a schematic diagram of a typical transmission fork shift configuration of the type referred to in the background art;
FIG. 2 is a schematic illustration of a neutral position setting for the transmission mentioned in the background of the invention;
FIG. 3 is a schematic illustration of gear position setting for a wear compensation based gear position setting method of the present invention.
Description of reference numerals:
1-gear shifting head, 2-shifting fork shaft, 3-gear shifting fork, 4-meshing gear sleeve, 5-left meshing gear, 6-transmission gear and 7-transmission shaft.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; the two elements may be mechanically or electrically connected, directly or indirectly connected through an intermediate medium, or connected through the inside of the two elements, or "in transmission connection", that is, connected in a power manner through various suitable manners such as belt transmission, gear transmission, or sprocket transmission. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 3, a gear position setting method based on wear compensation is applied to a speed change system, which is an automobile speed change system. The speed change system comprises a gearbox and a gearbox controller, the gearbox comprises a gear shift system, the gearbox comprises an execution structure, a gear shift shifting block, a gear shift shifting fork and an engagement gear sleeve, and the gear position setting method based on wear compensation comprises the following steps:
firstly, setting gear position information and abrasion loss information in the gearbox controller, wherein the gear position information comprises:
d _ L0: the mechanical limit position towards the left is set,
d _ L: the gear position towards the left is set to be a position,
d _ N: regardless of the neutral set position of the wear compensation,
d _ R0: the mechanical limit position towards the right is set,
d _ R: the gear position is set to the right,
d _ NR: the neutral target position after the right side gear shifting system wearing capacity is considered,
d _ NL: the neutral target position after the left side gear shifting system wearing capacity is considered,
wherein: d _ N ═ D _ L0+ D _ R0)/2,
the wear amount information includes:
Δ D _ L0: the amount of wear on the left side of the shifting system,
Δ D _ R0: the amount of wear on the right side of the shifting system,
then, compensation information is set as follows:
when the gearbox is in a D _ L gear, if the gearbox needs to be in a neutral gear, setting a target position of the neutral gear as D _ NL, and shifting the D _ L0 to the right side on the basis of the D _ N to obtain D _ NL;
when the gearbox is in a D _ R gear, if the gearbox needs to be in a neutral gear, the target position of the neutral gear is set to be D _ NR, and D _ NR is obtained by shifting the D _ N gear to the left side by delta D _ R0.
According to an embodiment of the present invention, Δ D _ L0 is obtained by the following method:
d _ L: automatically calibrating the obtained leftward mechanical limit position when the gearbox leaves a factory for detection;
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move leftwards, the actuating mechanism enables the meshing gear sleeve to move leftwards to a mechanical limiting position where the gear shifting system moves leftwards, and the position is D _ L0;
△D_L0＝|D_L0|-|D_L*|。
For example, when the gearbox is last factory set, D _ L0 is-8 mm, namely D _ L is-8 mm; and the D _ L0 obtained by the identification is-8.5 mm, then,
△D_L0＝|D_L0|-|D_L*|＝|-8|-|8.5|＝0.5mm；
according to an embodiment of the present invention, the Δ D _ R0 is obtained by the following method:
d _ R: automatically calibrating the obtained rightwards mechanical limit position when the gearbox leaves factory for detection;
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move rightwards, and the actuating mechanism enables the meshing gear sleeve to move rightwards to a mechanical limiting position of the gear shifting system, wherein the mechanical limiting position is D _ R0;
△D_R0＝|D_R0|-|D_R*|。
For example, D _ R0 is 8mm when the gearbox is last factory set, that is, D _ R is 8 mm;
while the D _ R0 obtained in this recognition was 8.5mm,
then Δ D _ R0 ═ D _ R0| - | D _ R | - |8.5| - |8| - | 0.5 mm;
according to another embodiment of the present invention, when obtaining Δ D _ L0 and Δ D _ R0, the following method may also be employed:
d _ L: automatically calibrating the obtained leftward mechanical limit position when the gearbox leaves a factory for detection; d _ R: automatically calibrating the obtained rightwards mechanical limit position when the gearbox leaves factory for detection;
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move leftwards, the actuating mechanism enables the meshing gear sleeve to move leftwards to a mechanical limiting position where the gear shifting system moves leftwards, and the position is D _ L0;
△D_L0＝|D_L0|-|D_L*|；
Step 4, identifying D _ R0
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move rightwards, and the actuating mechanism enables the meshing gear sleeve to move rightwards to a mechanical limiting position of the gear shifting system, wherein the mechanical limiting position is D _ R0;
△D_R0＝|D_R0|-|D_R*|。
In the present embodiment, in step 1, the shift position information of D _ L and D _ R is set at the same time. D _ L0, calculate Δ D _ L0, identify D _ R0, calculate Δ D _ R0, in that order.
According to another embodiment of the present invention, when obtaining Δ D _ L0 and Δ D _ R0, the following method may also be employed:
d _ R: automatically calibrating the obtained rightwards mechanical limit position when the gearbox leaves factory for detection; d _ L: automatically calibrating the obtained leftward mechanical limit position when the gearbox leaves a factory for detection;
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move rightwards, and the actuating mechanism enables the meshing gear sleeve to move rightwards to a mechanical limiting position of the gear shifting system, wherein the mechanical limiting position is D _ R0;
△D_R0＝|D_R0|-|D_R*|；
Step 4, identify D _ L0
The gearbox controller controls the actuating mechanism to act so as to drive the gear shifting head, the gear shifting fork and the meshing gear sleeve to move leftwards, the actuating mechanism enables the meshing gear sleeve to move leftwards to a mechanical limiting position where the gear shifting system moves leftwards, and the position is D _ L0;
△D_L0＝|D_L0|-|D_L*|。
In the present embodiment, in step 1, the shift position information of D _ R and D _ L is set at the same time. Then, D _ R0, Δ D _ R0, D _ L0 and Δ D _ L0 are identified in sequence.
In the above embodiments, the setting of the gear position information in the transmission controller is achieved by starting the gear setting, and the modes of starting the gear setting include the following three modes, which are feasible no matter which mode is adopted.
(1) Commissioning personnel start-up
And designing a debugging mode interface in the software scheduling of the gearbox controller in advance, and starting a gear position setting program by the gearbox controller after debugging equipment is connected with the debugging mode interface and sends a starting gear position setting instruction through the CAN during debugging.
(2) Shift abort activation start
When the gear shifting is unsuccessful or abnormal in the process of automatic gear shifting of the gearbox controller, the gearbox controller actively starts a gear setting program.
(3) Periodic active start
The method comprises the steps that a regular starting program is set in a gearbox controller in advance, starting conditions are defined, and after the starting conditions are met, the gearbox controller actively activates gear setting on the premise of safety to identify whether the gear shifting stroke of the gearbox changes or not.
The starting conditions are as follows: the gear shifting times of the gear shifting system exceed a set value, or when the speed change system is applied to a vehicle, the driving mileage of the vehicle exceeds the set value, specifically, the driving mileage of the vehicle exceeds the set distance in last detection.
Compared with the prior art, the gear position setting method based on wear compensation defines the calculation method of the wear loss of the two sides of the gear shifting system, the neutral position D _ N can be corrected according to the wear loss, the target position of the neutral position in the software of the gearbox controller can be corrected according to the wear loss of the gear shifting system of the gearbox, the reliability of the neutral gear engagement of the gearbox is guaranteed, and the success rate of the neutral gear engagement is improved. After the gear position setting method based on wear compensation is applied, when a certain side or two sides of a gear shifting system of the gearbox have wear gaps, software in a gearbox controller can eliminate the influence of the gaps according to the wear loss, and the meshing teeth can be guaranteed to reliably return to the neutral position.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (6)
1. A gear position setting method based on wear compensation is applied to a speed change system, the speed change system comprises a gearbox and a gearbox controller, the gearbox comprises a gear shift system, the gearbox comprises an actuating mechanism, a gear shift shifting block, a gear shift fork and an engaging gear sleeve, and is characterized in that,
the gear position setting method based on wear compensation comprises the following steps:
gear position information and wear amount information are first set in the gearbox controller,
the gear position information includes:
d _ L0: the mechanical limit position towards the left is set,
d _ L: the gear position towards the left is set to be a position,
d _ N: regardless of the neutral set position of the wear compensation,
d _ R0: the mechanical limit position towards the right is set,
d _ R: the gear position is set to the right,
d _ NR: the neutral target position after the right side gear shifting system wearing capacity is considered,
d _ NL: the neutral target position after the left side gear shifting system wearing capacity is considered,
wherein: d _ N ═ D _ L0+ D _ R0)/2,
the wear amount information includes:
Δ D _ L0: the amount of wear on the left side of the shifting system,
Δ D _ R0: the amount of wear on the right side of the shifting system,
then, compensation information is set as follows:
when the gearbox is in a D _ L gear, if the gearbox needs to be in a neutral gear, setting a target position of the neutral gear as D _ NL, and shifting the D _ L0 to the right side on the basis of the D _ N to obtain D _ NL;
when the gearbox is in a D _ R gear, if the gearbox needs to be in neutral, the target position of the neutral is set as D _ NR, D _ NR is obtained by shifting the D _ N to the left side by delta D _ R0, wherein,
the Δ D _ L0 is obtained as follows: step 1, the gear position set in the gearbox controller further comprises: d _ L: automatically calibrating the obtained leftward mechanical limit position when the gearbox leaves a factory for detection; step 2, identifying D _ L0, controlling the action of the executing mechanism by the gearbox controller so as to drive the gear shifting block, the gear shifting fork and the meshing gear sleeve to move left, and enabling the meshing gear sleeve to move left by the executing mechanism to a mechanical limiting position of the gear shifting system, wherein the mechanical limiting position is D _ L0; step 3, calculating Δ D _ L0, Δ D _ L0| D _ L0| - | D _ L |; the Δ D _ R0 is obtained as follows: step 1, the gear position set in the gearbox controller further comprises: d _ R: automatically calibrating the obtained rightwards mechanical limit position when the gearbox leaves factory for detection; step 2, identifying D _ R0, controlling the action of the actuating mechanism by the gearbox controller so as to drive the gear shifting block, the gear shifting fork and the meshing gear sleeve to move rightwards, and enabling the meshing gear sleeve to move rightwards to a mechanical limiting position of the gear shifting system by the actuating mechanism, wherein the mechanical limiting position is D _ R0; step 3, calculating Δ D _ R0, Δ D _ R0| -D _ R0| - | D _ R |; alternatively, the first and second electrodes may be,
the methods of obtaining Δ D _ L0 and Δ D _ R0 are as follows: step 1, the gear position set in the gearbox controller further comprises: d _ L: automatically calibrating the obtained leftward mechanical limit position when the gearbox leaves a factory for detection; d _ R: automatically calibrating the obtained rightwards mechanical limit position when the gearbox leaves factory for detection; step 2, identifying D _ L0, controlling the action of the executing mechanism by the gearbox controller so as to drive the gear shifting block, the gear shifting fork and the meshing gear sleeve to move left, and enabling the meshing gear sleeve to move left by the executing mechanism to a mechanical limiting position of the gear shifting system, wherein the mechanical limiting position is D _ L0; step 3, calculating Δ D _ L0, Δ D _ L0| D _ L0| - | D _ L |; step 4, identifying D _ R0, controlling the action of the executing mechanism by the gearbox controller so as to drive the gear shifting block, the gear shifting fork and the meshing gear sleeve to move rightwards, and enabling the meshing gear sleeve to move rightwards to a mechanical limiting position of the gear shifting system by the executing mechanism, wherein the mechanical limiting position is D _ R0; step 5, calculating Δ D _ R0, Δ D _ R0| -D _ R0| - | D _ R |; alternatively, the first and second electrodes may be,
the methods of obtaining Δ D _ R0 and Δ D _ L0 are as follows: step 1, the gear position set in the gearbox controller further comprises: d _ R: automatically calibrating the obtained rightwards mechanical limit position when the gearbox leaves factory for detection; d _ L: automatically calibrating the obtained leftward mechanical limit position when the gearbox leaves a factory for detection; step 2, identifying D _ R0, controlling the action of the actuating mechanism by the gearbox controller so as to drive the gear shifting block, the gear shifting fork and the meshing gear sleeve to move rightwards, and enabling the meshing gear sleeve to move rightwards to a mechanical limiting position of the gear shifting system by the actuating mechanism, wherein the mechanical limiting position is D _ R0; step 3, calculating Δ D _ R0, Δ D _ R0| -D _ R0| - | D _ R |; step 4, identifying D _ L0, controlling the action of the executing mechanism by the gearbox controller so as to drive the gear shifting block, the gear shifting fork and the meshing gear sleeve to move left, and enabling the meshing gear sleeve to move left by the executing mechanism to a mechanical limiting position of the gear shifting system, wherein the mechanical limiting position is D _ L0; step 5, calculating Δ D _ L0, | D _ L0| - | D _ L0| - | D _ L |.
2. The wear compensation-based gear position setting method according to claim 1, wherein setting gear position information in the gearbox controller is achieved by initiating gear setting in a manner that commissioning personnel initiate, in particular: and designing a debugging mode interface in the software scheduling of the gearbox controller in advance, and starting a gear position setting program by the gearbox controller after debugging equipment is connected with the debugging mode interface and sends a starting gear position setting instruction through the CAN during debugging.
3. The wear compensation-based gear position setting method according to claim 1, characterized in that setting gear position information in the gearbox controller is achieved by initiating gear settings in a manner that activates a start for a shift anomaly, in particular: when the gear shifting is unsuccessful or abnormal in the process of automatic gear shifting of the gearbox controller, the gearbox controller actively starts a gear setting program.
4. The wear compensation-based gear position setting method according to claim 1, wherein setting gear position information in the gearbox controller is achieved by initiating a gear setting in a periodically active start, in particular: the method comprises the steps that a regular starting program is set in a gearbox controller in advance, starting conditions are defined, and after the starting conditions are met, the gearbox controller actively activates gear setting on the premise of safety to identify whether the gear shifting stroke of the gearbox changes or not.
5. The wear compensation-based gear position setting method according to claim 4, wherein the start-up condition is: the gear-shifting times of the gear-shifting system exceed a set value, or the driving mileage of the vehicle exceeds a set value when the speed-changing system is applied to the vehicle.
6. The wear compensation-based gear position setting method according to any one of claims 1 to 5, wherein the transmission system is an automotive transmission system.
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